Designers Carmela Bogman and Rogier Martens designed a new kind of outdoor furniture that can be pumped out of the pavement by the inhabitants. Hydraulic system allows the furniture to be fixed at any height. This means that you can decide whether you want to create a bench or a picnic table. After use, it can be pumped back and it will disappear into the ground. The first Pop Up was installed in the city of Utrecht in the Netherlands. To ensure safety, several control keys were spread among the locals in the neighborhood. The keys give access to the pumping system.